Anti-frigtion bearing



(No Model.) 2 SheetsSheet 1. L. K. JEWETT. ANTPFRIG TION BEARING.

- Patented Mar. 24, 1891.

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(No Model.)

2 Sheets-Sheet 2. L. K. JEWETT. ANTI-FRICTION BEARING.

Patented Mar. 24, 1891.

UNITED STATES PATENT FFICE.

LUTHER K. JEWE"T, OF BOSTON, MASSACHUSETTS, ASSIGN OR TO THE JElVETT SUPPLY COMPANY, OF PORTLAND, MAINE.

ANTI-FRICTION BEARING.

SPECIFICATION forming part of Letters Patent N 0. 449,078, dated March 24, 1891. Application filed August 11, 1890. Serial No. 361,648. (No model.)

To aZZ whom it may concern: Figure l is a transverse section of i a suffi- Be it known that I, LUTHER K. J EWETT, of cient portion of a car-body and its truck pro- Boston, county of Suffolk, State of Massachuvided with anti-friction devices embodying setts, have invented an Improvement in Antimy invention to enable the said invention to Friction Bearings, of which the following debe understood; Fig. 2, a top or plan View, par- SCllIJlYlOl], in connection with the accompanytially broken out, of the car-truck bolster and ing drawings, is a specification, like letters on the anti-friction device supported by it; Fig. the drawings representing like parts. 3, a top or plan view of one of the side bear- This invention relates to a novel anti-fricings, spacing-frames, and its rollers; Fig. 4, a

I0 iiion bearing, support, or device especially transverse section of the side bearing shown adapted to be used between car-bodies and in Fig. 3 on line 00 m; Fig. 5,a detail to be retheir ear-trucks, and is an improvement upon ferred to; Fig. 6, a-transverse section of the the anti-friction device substantially such as center bearing; Fig. 7, a longitudinal section shown and described in United States Patent of the upper bearing-surface of one of the IS No. 427,693, granted to me May 13, 1890. side bearings; Fig. 8, a top or plan view of In the patent referred to the side bearings the center bearing, spacing-frame, and its and the center bearing are independent of rollers; Fig. 9, a transverse section on the each other, and the side bearings are kept in line 00 00', Fig. 8; Fig. 10, a transverse section place by means of a rack-bar on the upper on the line 3/ Fig. 8; Figs. 11, 12, 13, and

2 and lower curved plate with which meshes a 14, details to be referred to; Fig. 15, a top or gear on the anti-friction roller. plan view, on an enlarged scale, of oneform My present invention has for its object to of device connecting the center bearing with construct the anti-friction device whereby the side bearing; and Fig. 16, a side elevation the rack-bars and gear on the side bearing of the connecting-bar shown in Fig. 15.

25 may be dispensed with and the free and un- The car-bodyA, represented by dotted lines, restrained rolling motion of the anti-friction its bolster A, composed, as herein shown, of device obtained. metal trusses, the car-truck A its bolster A,

Another feature of my invention consists the swing-plank a, suspended from the bolin connecting the center bearing to the side ster A by the links a, the bolster-sustaining 3 bearings, whereby they may move simultasprings (6 the equalizer-bar a and equalizer- 8o neously. The bearing-surfaces of the antisprings a are and may be of any usual or friction device will preferably be provided well-known. construction and substantially with a hardened face, whereby the life of the such as shown and described in the patent anti-friction support or bearing may be proreferred to.

35 longed. The car-truck bolster A has secured to it My invention therefore consists in the comby bolts orin any other suitable manner-the bination, with an anti-friction center bearing lower surface a of the center-bearing, prefcomposed of two flat or plane bearing-surerably a plate or casting provided with a cenfaces and intermediate anti-friction devices tral opening through which the king-bolt a 4 provided with arbors, and a spacing-frame is extended, and preferably having aninmovable with the said arbors, of an anti-fricclined ridge ortrack cl, upon which rest antition side bearing consisting of an upper and friction devices, preferably conically-shaped lower bearing-surface and an interposed antirollers a friction device provided with arbors, aframe The car-body bolster A has secured to it v 45 movable with said arbors, and an interniein usual manner the upper bearing-surface, 5

diate connection between the said movable plate, or casting a of the center bearing, the frames, substantiz lly as will be described. said plate or casting being preferably pro- Other features of my invention will be vided with an inclined track or way a pointed out in the claims at the end of this The anti-friction conieally-shaped rollers a 5 specification. of the center bearing, provided with arbors I00 O at faces which come in contact with the rollers are'preferably made as a steel plate or bar 0, secured to the under surface of the top bearing-plate and to the upper surface of the lower bearing-plate, only'one of such bars or platescbeing shown in the upper bearingsurface of the side bearing. (See Fig. t.) By this means the bearing-surface may be made of steel, and the plate or casting to which it is secured maybe made of malleable iron.

It will be noticed that the rollers of the side bearings, as well as the rollers of the center bearing,have a free and natural movement, and are not restricted in their movement be tween the upper and lower bearing-surfaces, which are made flat or plane. Furthermore, by providing the inner sides of the spacingframes with ears capable of being bent so as to partially encircle the arbors of the antifriction rollers the said rollers are readily kept in place and may be easily handled.

I have herein shown the side bearing as provided with two rollers, and while I may prefer to employ a plurality of rollers I do not desire to limit myself to any particular number of rollers, as one or more may be used, and, furthermore, instead of the conicallyshaped rollers, I may use balls provided with arbors.

The steel facing or plate 0 may be secured in place by any suitable means; but I prefer to secure it by means of lips c on the ends of the bearing-surfaces, the said lips being bent inward, as shown in Fi 7, to enter a notch in the end of the plate 0. Q

In practice the upper bearing-surface ot the center and side bearings are preferably made large enough to extend over and beyond the movable frame of the center and side bearings, so as to prevent the intermediate connections b from becoming detached from the movable frames of the center and side bearings; but it is evident the said connections may be locked to the said movable frames in any other well-known manner.

I claim- 1. The combination, with an anti-friction center bearing composed of two flat or plane bearing-surfaces and intermediate anti-friction devices provided with arbors, and a spacing'frame movable with the said arbors, of an anti-friction side bearing consisting of an upper and lower bearing-surface and an interposed anti-friction device provided with arbors, a frame movable with said arbors, and an intermediate connection between the said movable frames, substantially as described.

2. In an anti-friction bearing, the combination, with two plane or flat bearing-surfaces, of an interposed anti-friction device provided with arbors, a frame movable with said arbors, and means provided with ears resting upon said arbors to lock the anti-friction device to the said frame, substantially as described.

u a, are separated by a frame composed of 1 two annular rings a a, united at suitable intervals apart by cross or tie bars a, substantially as in the patent referred to.

The annular rings a a of the framchave secured to or forming part of them on their i inner sides cars a, which fit over the arbors of the eonieally-shapcd rollers, and which are bent around the said arbors to fit the same loosely; but suflicient to form a locking device to prevent the arbors from falling out from between the cars, so that the said frame and the conically-shaped rollers form practically one part or piece, and may be readily handled without disturbing the said rollers, the bent position of the ears being clearly shown in Fig. 12.

The car-truck bolster A" at or near the sides of the truck has secured to it anti-friction side bearings, and both side bearings being of like construction I shall specifically describe but one.

The anti-friction side bearing consists of a bottom plate or casting b, which is secured to the car-truck bolster, a top plate or casting I), secured to the car-bodybolster, and an interposed anti-friction device b preferably one or more conically-shaped rollers having arbors.

The anti-friction rollers IF have co-operating with them a frame composed, as shown in Fig. 3, of side bars I) and cross-bars b", the side bars I), having on their inner sides ears D which are normally straight, as shown in Fig. 13; but which arein practice bent around to partially encircle the arbors b of the conieally-shaped rollers b to form a locking device to prevent the said rollers from becoming detached from the frame.

The frame of each side bearing is preferably joined by an intermediate connection 11 to the spacing-frame of the center hearing, so that the conically-shaped roller or rollers of the side bearing may revolve in unison with the rollers of the center bearing, the said connection being preferably made, as herein shown, after the manner of two bars 2 3, crossing each other obliquely.

The intermediate connection I) may be fastened to the frames referred to of the center and side bearings in any suitable or desired manner, it being herein shown as secured by means of preferably hollow studs or posts I)" at the ends of the arms 2 3 on their under side, the said posts fitting into suitable holes or sockets b" in cars D b, secured to or forming partof the side bearing-frame and the center bearing-frame, respectively, the said holes or sockets being of sufficient size to permit of aslight rising and falling of the frame.

The bars 2 3, forming the intermediate connection, are preferably strengthened on their under sides by a rib Z). (See dotted lines, Fig. 13, and full lines, Fig. 14.)

In order that the anti-friction bearings may unite lightness with strength,the bearing-sur- 3. I11 an anti-friction bearing, the combinafriction device and provided with ears bent tion, with two plane or flat bearing-surfaces about the arbors to lock the anti-friction deprovided with a hardened face 0, of an intervice t0 the frame, substantially as described.

posed anti-friction device provided with ar- In testimony whereof I have signed my 15 5 bors, and a frame movable with said antiname to this specification in the presence of friction device, substantially as described. I two subscribing witnesses.

4. In an anti-friction bearing, the combina- 1 tion, with two plane or flat bearing-surfaces provided with a hardened face 0, of an interlVitnesses: ro posed anti-friction device provided with ar- JAS. H. CHURCHILL,

bors, and a frame movable with said antir EMMA J. BENNETT.

LUTIIEE K. J EWET' 

